DE227969C - - Google Patents
Info
- Publication number
- DE227969C DE227969C DENDAT227969D DE227969DA DE227969C DE 227969 C DE227969 C DE 227969C DE NDAT227969 D DENDAT227969 D DE NDAT227969D DE 227969D A DE227969D A DE 227969DA DE 227969 C DE227969 C DE 227969C
- Authority
- DE
- Germany
- Prior art keywords
- flaps
- spring
- ball
- rotary flaps
- open position
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 210000003813 thumb Anatomy 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/58—Means for varying duration of "open" period of shutter
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manipulator (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE227969C true DE227969C (https=) |
Family
ID=488390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT227969D Active DE227969C (https=) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE227969C (https=) |
-
0
- DE DENDAT227969D patent/DE227969C/de active Active
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